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CVE-2026-47241

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If this string is derived from user-controlled input, an attacker can force the next command to be absorbed as a continuation of the first command. This will cause the first command to eventually fail, but also prevents it from returning until another
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:76d79817cd5db915d9274d1337b9625d9149b59a76ede1e76d528393d9f51ba3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-162","description":"CWE-162: Improper Neutralization of Trailing Special Elements","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-182","description":"CWE-182: Collapse of Data into Unsafe Value","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-186","description":"CWE-186: Overly Restrictive Regular Expression","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"net-imap","vendor":"ruby","versions":[{"status":"affected","version":">= 0.6.0, < 0.6.4.1"},{"status":"affected","version":"< 0.5.15"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2.1,"baseSeverity":"LOW","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

3 source assertions
{"cweId":"CWE-162","description":"CWE-162: Improper Neutralization of Trailing Special Elements","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-182","description":"CWE-182: Collapse of Data into Unsafe Value","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-186","description":"CWE-186: Overly Restrictive Regular Expression","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/problemTypes/2/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/ruby/net-imap/security/advisories/GHSA-c4fp-cxrr-mj66","tags":["x_refsource_CONFIRM"],"url":"https://github.com/ruby/net-imap/security/advisories/GHSA-c4fp-cxrr-mj66"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bba75662dc9346610a6fb6956866a1d68b55d166ae507a7e666916b49686b7f8 · sha256:57010adab85784fb… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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